Hi Guys, Want to ask assistance from you guys again. We migrated from PSTN to SIP last year. Our set-up is like ITSP>>(sip)>>Cube>>>CCMv4>>(sccp)>>Unityv4. All calls inbound and outbound are working. However, when a call from mobile calls our Unity voicemail pilot, it doesnt recognize the digit they pressed. It works if call originates from landline. DTMF-relay was set to rtp-nte originally on our inbound and outbound dial-peers. I tried to use KPML, Notify etc but nothing worked. i also configured a hardware MTP on our cube and register it to CCM but it still not working. We refered this out to telco and they said that our cube is not confirming rtp-payload 101 if calls originates from TDM. But if it comes from another voip peer, its likely they are sending RFC2833 which requires no rtp-payload 101 to work. My question is why our cube is not confirming rtp-payload 101? Is there any command in the cube to configure this? Does it have something to do with the version of our CCM and unity(both are version4)? Attached are the running config of the cube and debug results. I hope someone can help us on this. Thanks in advance! ... View more

Hi Guys! Good day! I have an upcoming project wherein we will migrate PSTN centres to SIP. These centres are composed of 130 sites and i was advised by my boss that SIP trunk will be installed individually per site. No TEHO, no intersite calling between centres.  My question is, how many sip trunks can be added to CUCM? I cant find any document related to this. We have a single cluster compose of 1 publisher and 9 subscribers. All CUCM version is 8.5.1. Hope someone can help me with this so i can inform my boss as well. Thanks!  ... View more

Hi Guys! Good day! Hope someone can help me with my dilemma involving an ISR router and a very old call manager. We are in the process of migrating several of our centers from PSTN to SIP. Most of these centers are using old Cisco call manager version 4.1, which is not a problem since their cube gateways are mostly 3845 routers. Now, one of the centers have a new Cisco ISR 4351 router which has a uck9 license. I have configured the SIP trunk on the cisco call manager and pointed it to the public ip(reachable from the ccm and phones) of the router. Inbound calls are working however outbound calls do not. I noticed that on my ccsip messages debugs, the ccm keeps on sending invites to the router but it just ignores these messages and sends no response to the callmanager. Now, is it possible that the CCMv4.1 is not compatible with the isr4000 router? If not, am i missing some commands to force the router to reply to the sip invites from the callmanager? Attached are the debugs and running configuration of the router. Please note that the config works on a ccmv4.1 and 3845 voice gateway set-up. Thanks in advance and i promise to rate all useful tips! =) ... View more

Hi Guys,   Good day! Hope everyone is doing well at the moment. We are having some weird issue with our callmanager and unity connection. They both on version 8.x. Whats happening is that when a call for an extension is forwarded to voicemail (tick VM under Call Forward and Call Pickup Settings), we'll get a 10 second delay in getting response from the cisco unity and instead hear 2x rings. After that, we'll then get the user voicemail greeting. It works fine when we point it to another unity cluster, wherein we get immediate greetings instead of 2 rings. That proves that the issue lies on the cisco unity server but we dont know what settings dictates this kind of behavior. Please see debug isdn q931 sample   RTR01Remote# 001252: May  5 11:23:01: ISDN Se0/1/0:23 Q931: RX <- SETUP pd = 8  callref = 0x1741         Bearer Capability i = 0x8090A2                 Standard = CCITT                 Transfer Capability = Speech                 Transfer Mode = Circuit                 Transfer Rate = 64 kbit/s         Channel ID i = 0xA98381                 Exclusive, Channel 1         Calling Party Number i = 0x21A3, N/A                 Plan:ISDN, Type:National         Called Party Number i = 0xA1, '4226774443'                 Plan:ISDN, Type:National 001253: May  5 11:23:01: ISDN Se0/1/0:23 Q931: TX -> CALL_PROC pd = 8  callref = 0x9741         Channel ID i = 0xA98381                 Exclusive, Channel 1 RTR01Remote# 001254: May  5 11:23:01: ISDN Se0/1/0:23 Q931: TX -> ALERTING pd = 8  callref = 0x9741         Progress Ind i = 0x8088 - In-band info or appropriate now available RTR01Remote# 001255: May  5 11:23:11: ISDN Se0/1/0:23 Q931: TX -> CONNECT pd = 8  callref = 0x9741         Display i = 'Connect VM' 001256: May  5 11:23:12: ISDN Se0/1/0:23 Q931: RX <- CONNECT_ACK pd = 8  callref = 0x1741 001257: May  5 11:23:12: ISDN Se0/1/0:23 Q931: RX <- STATUS pd = 8  callref = 0x1741         Cause i = 0x80E328 - Information element not implemented         Call State i = 0x0A Hope somebody can help us with this. Please advise if additional sample/tests are needed for this. Thanks! ... View more